Commit b1a1fd93 authored by Cristian Pop's avatar Cristian Pop Committed by Jonathan Cameron
Browse files

Documentation/ABI/testing: Add documentation for AD5766 new ABI 



New interface is proposed for dither functionality. This future allows
composing  an external signals to the selected output channel.
The dither signal can be turned on/off, scaled, inverted, or it can be
selected from different sources.

Signed-off-by: default avatarCristian Pop <cristian.pop@analog.com>
Link: https://lore.kernel.org/r/20210115112105.58652-2-cristian.pop@analog.com


Signed-off-by: default avatarJonathan Cameron <Jonathan.Cameron@huawei.com>
parent e904cc89

Documentation/ABI/testing/sysfs-bus-iio-dac-ad5766

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What:		/sys/bus/iio/devices/iio:deviceX/in_voltageY_dither_enable

KernelVersion:	5.12

Contact:	linux-iio@vger.kernel.org

Description:

		Dither enable. Write 1 to enable dither or 0 to disable it.



What:		/sys/bus/iio/devices/iio:deviceX/in_voltageY_dither_invert

KernelVersion:	5.12

Contact:	linux-iio@vger.kernel.org

Description:

		Inverts the dither applied to the selected DAC channel. Dither is not

		inverted by default. Write "1" to invert dither.



What:		/sys/bus/iio/devices/iio:deviceX/in_voltageY_dither_scale_available

KernelVersion:	5.12

Contact:	linux-iio@vger.kernel.org

Description:

		Returns possible scalings available for the current channel.



What:		/sys/bus/iio/devices/iio:deviceX/in_voltageY_dither_scale

KernelVersion:	5.12

Contact:	linux-iio@vger.kernel.org

Description:

		Scales the dither before it is applied to the selected channel.



What:		/sys/bus/iio/devices/iio:deviceX/in_voltageY_dither_source

KernelVersion:	5.12

Contact:	linux-iio@vger.kernel.org

Description:

		Selects dither source applied to the selected channel. Write "0" to

		select N0 source, write "1" to select N1 source.